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Verizon [17]
3 years ago
8

I don’t understand it I’d appreciate it

Mathematics
1 answer:
34kurt3 years ago
8 0

Answer:

\frac{8\sqrt{3} }{3}

Step-by-step explanation:

4^2 +x^2/4=x^2

3x^2=4*4^2

x=\frac{8\sqrt{3} }{3}

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Step by step to how to solve quadratic equation given the roots ​
Triss [41]

 

\displaystyle\it\\\text{We have the equation: }\\\\ax^2+bx+c=0\\\\\text{We find the roots:}\\\\x_{12}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x_{1}=\frac{-b+\sqrt{b^2-4ac}}{2a}\\\\x_{2}=\frac{-b-\sqrt{b^2-4ac}}{2a}\\\\\text{If } b^2-4ac>0 \text{ then }x_1, x_2\in~R\\\\\text{If } b^2-4ac=0 \text{ then }x_1=x_2\in~R\\\\\text{If } b^2-4ac

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3 0
3 years ago
Which equation represents the graph below?<br><br> A. y=3x-2<br> B.y=-2x+3<br> C.y=3x-2<br> D.2x+3
KatRina [158]

Answer:

d

Step-by-step explanation:

5 0
3 years ago
F−1(−2) = <br><br> f(−4) = <br><br> f(f−1(−2)) =
Sauron [17]

need more information

7 0
3 years ago
Read 2 more answers
PLEASE HELP I DONT WANNA FAIL MY QUIZ!!!
Gwar [14]

Answer: 2.5 ft.

Step-by-step explanation: We know that the wall is 10ft and each poster is 1 1/4 ft, so subtract both posters from the wall, 10-2.5 = 7.5, then divide 7.5 by 3 since we need 3 lengths, and we get 2.5ft. So for x, it would be 2.5ft.

x=2.5

Hope this helps!

3 0
3 years ago
Read 2 more answers
Harlene tosses two number cubes. If a sum of 8 or 12 comes up, she gets 9 points. If not, she loses 2 points. What is the expect
Alisiya [41]
<span>It's easy enough. Solving looks like that: p(roll of 8)+p(roll of 12) =</span>\frac{5}{36} + \frac{1}{36} = \frac{1}{6} ; \frac{1}{6} *9 +\frac{5}{6}*2 = \frac{3}{2} - \frac{5}{3} = -\frac{1}{6} Hope everything is clear.
5 0
4 years ago
Read 2 more answers
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